From 2648c771e78d9e630db743ff44fd87dd705953ff Mon Sep 17 00:00:00 2001
From: Ray <raysan5@gmail.com>
Date: Sat, 27 May 2023 20:39:10 +0200
Subject: [PATCH] Avoid control crash on NULL pointers

---
 src/raygui.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/raygui.h b/src/raygui.h
index b8d90c6..9acb173 100644
--- a/src/raygui.h
+++ b/src/raygui.h
@@ -1667,6 +1667,9 @@ int GuiScrollPanel(Rectangle bounds, const char *text, Rectangle content, Vector
     int result = 0;
     GuiState state = guiState;
 
+    Rectangle temp = { 0 };
+    if (view == NULL) view = &temp;
+
     Vector2 scrollPos = { 0.0f, 0.0f };
     if (scroll != NULL) scrollPos = *scroll;
 
@@ -1887,6 +1890,9 @@ int GuiToggle(Rectangle bounds, const char *text, bool *active)
     int result = 0;
     GuiState state = guiState;
 
+    bool temp = false;
+    if (active == NULL) active = &temp;
+
     // Update control
     //--------------------------------------------------------------------
     if ((state != STATE_DISABLED) && !guiLocked && !guiSliderDragging)
@@ -1936,6 +1942,9 @@ int GuiToggleGroup(Rectangle bounds, const char *text, int *active)
     int result = 0;
     float initBoundsX = bounds.x;
 
+    bool temp = false;
+    if (active == NULL) active = &temp;
+
     bool toggle = false;    // Required for individual toggles
 
     // Get substrings items from text (items pointers)
@@ -1978,6 +1987,9 @@ int GuiCheckBox(Rectangle bounds, const char *text, bool *checked)
     int result = 0;
     GuiState state = guiState;
 
+    bool temp = false;
+    if (checked == NULL) checked = &temp;
+
     Rectangle textBounds = { 0 };
 
     if (text != NULL)
@@ -2038,6 +2050,9 @@ int GuiComboBox(Rectangle bounds, const char *text, int *active)
     int result = 0;
     GuiState state = guiState;
 
+    int temp = 0;
+    if (active == NULL) active = &temp;
+
     bounds.width -= (GuiGetStyle(COMBOBOX, COMBO_BUTTON_WIDTH) + GuiGetStyle(COMBOBOX, COMBO_BUTTON_SPACING));
 
     Rectangle selector = { (float)bounds.x + bounds.width + GuiGetStyle(COMBOBOX, COMBO_BUTTON_SPACING),
@@ -2673,6 +2688,9 @@ int GuiSliderPro(Rectangle bounds, const char *textLeft, const char *textRight,
     int result = 0;
     GuiState state = guiState;
 
+    float temp = (maxValue - minValue)/2.0f;
+    if (value == NULL) value = &temp;
+
     int sliderValue = (int)(((*value - minValue)/(maxValue - minValue))*(bounds.width - 2*GuiGetStyle(SLIDER, BORDER_WIDTH)));
 
     Rectangle slider = { bounds.x, bounds.y + GuiGetStyle(SLIDER, BORDER_WIDTH) + GuiGetStyle(SLIDER, SLIDER_PADDING),
@@ -2797,6 +2815,9 @@ int GuiProgressBar(Rectangle bounds, const char *textLeft, const char *textRight
     int result = 0;
     GuiState state = guiState;
 
+    float temp = (maxValue - minValue)/2.0f;
+    if (value == NULL) value = &temp;
+
     Rectangle progress = { bounds.x + GuiGetStyle(PROGRESSBAR, BORDER_WIDTH),
                            bounds.y + GuiGetStyle(PROGRESSBAR, BORDER_WIDTH) + GuiGetStyle(PROGRESSBAR, PROGRESS_PADDING), 0,
                            bounds.height - 2*GuiGetStyle(PROGRESSBAR, BORDER_WIDTH) - 2*GuiGetStyle(PROGRESSBAR, PROGRESS_PADDING) };
@@ -3311,6 +3332,9 @@ int GuiColorPicker(Rectangle bounds, const char *text, Color *color)
 {
     int result = 0;
 
+    Color temp = { 200, 0, 0, 255 };
+    if (color == NULL) color = &temp;
+
     GuiColorPanel(bounds, NULL, color);
 
     Rectangle boundsHue = { (float)bounds.x + bounds.width + GuiGetStyle(COLORPICKER, HUEBAR_PADDING), (float)bounds.y, (float)GuiGetStyle(COLORPICKER, HUEBAR_WIDTH), (float)bounds.height };